What happens in Act IV of The Tempest?
Act IV begins with Prospero officially giving Miranda to Ferdinand, lifting the servitude he had imposed to test the young man's worth. To celebrate their engagement, Prospero calls on Ariel to create a grand masque featuring the goddesses Iris, Ceres, and Juno, who bless the couple with visions of abundant harvests and a prosperous marriage. However, Prospero's stern condition—that Ferdinand must abstain from any sexual relations before the wedding—adds a layer of moral seriousness to the event. The masque comes to an abrupt end when Prospero suddenly recalls Caliban's plot with Stephano and Trinculo to kill him. Clearly disturbed, he sends the spirits away and delivers his famous speech about the "insubstantial pageant." Ariel then tells him how he has guided the three conspirators through swamps and thorns before tempting them with shiny clothes hung on a lime tree. Caliban pushes his drunken companions to ignore the finery and continue with their murder scheme, but Stephano and Trinculo can't resist the flashy garments. Prospero and Ariel unleash spirit-hounds on the trio, chasing them away in pain and disgrace. The act concludes with Prospero declaring that his enemies are now completely at his mercy and that his plan is nearing its end.
Analysis
Act IV is the most self-aware part of the play, and Shakespeare uses it to examine the theatrical tools he’s employing. The masque—a lavish court entertainment—acts like a mirror within the play, revealing the layers of illusion that Prospero has been building. Its sudden interruption carries extra weight: the fiction within the fiction crumbles, and Prospero's calm demeanor falters. His visible agitation shows that control, no matter how absolute it seems, is ultimately temporary.
The "insubstantial pageant" speech shifts the mood of the act from celebratory to mournful. Shakespeare transitions from the formal verse of the masque to a more personal and philosophically raw tone, narrowing the gap between the island’s conjured images and the real world of the audience. This speech serves as a meta-theatrical pivot, tying the Globe theater itself to the imagery of dissolution.
Caliban's practicality—"the dropsy drown this fool! what do you mean / To dote thus on such luggage?"—provides a striking contrast in tone. While Stephano and Trinculo are captivated by the surface glamour, Caliban remains focused on the reality of the situation. Shakespeare uses this irony to deepen the colonial interpretation: the so-called "savage" character shows the sharpest political awareness in the scene. The lime-tree wardrobe thus symbolizes the corrupting force of material desire, resonating with the play's broader exploration of appetite, power, and how easily ambition can be undermined by vanity.
Key quotes from Act IV
“Our revels now are ended. These our actors, / As I foretold you, were all spirits and / Are melted into air, into thin air.”
Prospero speaks to Ferdinand immediately after dissolving the masque, pivoting from celebration to a meditation on impermanence.
“We are such stuff / As dreams are made on, and our little life / Is rounded with a sleep.”
The closing lines of Prospero's 'insubstantial pageant' speech, widely read as Shakespeare's most compressed statement on mortality and illusion.
“The dropsy drown this fool! what do you mean / To dote thus on such luggage?”
Caliban rebukes Stephano and Trinculo for stopping to steal the glittering garments, revealing his singular focus on the assassination plot.